As great-power rivalry weakens old institutions and disrupts globalisation, middle powers have new leverage to build coalitions, stabilise trade and provide public goods across the North–South divide. The age of disruption and great power geopolitics has arrived. Singapore’s Foreign Minister has called the traditional underwriter of rules-based globalisation a ‘revisionist power’ – a term once reserved for Russia and China. Wars have broken out in Ukraine, the Middle East and Iran.